Difference between revisions of "Frequently asked questions about GEOS-Chem"

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(Where can I get restart files for GEOS-Chem?)
(Science questions)
 
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Where can I find information about ...
 
Where can I find information about ...
  
* [[GEOS-Chem chemistry mechanisms|the available chemical mechanisms in GEOS-Chem?]]
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* [[Guide to GEOS-Chem simulations|types of GEOS-Chem simulations that I can run?]]
* [[Bromine chemistry mechanism|the bromine chemistry mechanism in GEOS-Chem?]]
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* [[Bromine chemistry mechanism|bromine chemistry?]]
 
* [[FlexChem|the KPP chemical solver?]]
 
* [[FlexChem|the KPP chemical solver?]]
 
* [[Linoz stratospheric ozone chemistry|the Linoz stratospheric ozone chemistry scheme?]]
 
* [[Linoz stratospheric ozone chemistry|the Linoz stratospheric ozone chemistry scheme?]]
* [[GEOS-Chem_chemistry_mechanisms#Stratospheric_chemistry|the stratospheric chemistry mechanism?]]
 
 
* [[Offline chemistry simulations|Other chemistry simulations such as CO2, CH4, Hg, etc.?]]
 
* [[Offline chemistry simulations|Other chemistry simulations such as CO2, CH4, Hg, etc.?]]
 
* [[HEMCO data directories|emissions options in GEOS-Chem?]]
 
* [[HEMCO data directories|emissions options in GEOS-Chem?]]
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* [[GEOS-Chem nested grid simulations]]?
 
* [[GEOS-Chem nested grid simulations]]?
  
--[[User:Bmy|Bob Yantosca]] ([[User talk:Bmy|talk]]) 17:45, 2 January 2019 (UTC)
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--[[User:Bmy|Bob Yantosca]] ([[User talk:Bmy|talk]]) 18:06, 20 September 2022 (UTC)
  
 
=== Technical issues ===
 
=== Technical issues ===

Latest revision as of 18:06, 20 September 2022

On this page we shall answer some commonly asked questions about GEOS-Chem.

Basic information about GEOS-Chem

For new users

Science questions

Where can I find information about ...

--Bob Yantosca (talk) 18:06, 20 September 2022 (UTC)

Technical issues

Parallelization issues

High-Performance GEOS-Chem (GCHP)

Please see the GCHP user manual at gchp.readthedocs.iofor more information.

Where can I get restart files for GEOS-Chem?

For instructions on how to obtain a set of sample restart files that you can use to spin up your own simulations, please visit this link.

Running GEOS-Chem

Please see our Running GEOS-Chem wiki page.

How long does GEOS-Chem take to run?

It depends on your particular computing environment. We have posted several timing results from GEOS-Chem 7-day time test simulations.

GEOS-Chem seems to be running too slowly. What can I do?

There are several ways to speed up a slow GEOS-Chem simulation.

If you are archiving many diagnostic quantities are a high temporal resolution (e.g. every hour), then this will increase the run time of your simulation. You can try saving out less diagnostic quantities, or archiving at a lower temporal resolution (e.g. every day).

GEOS-Chem errors

Please also see our Guide to GEOS-Chem error messages and Debug GEOS-Chem and HEMCO errors pages.

GEOS-Chem died with an error. What can I do?

Please see Understanding the different categories of errors section of our Guide to GEOS-Chem error messages.